Medicare 2026

Two Roads Into Medicare: Which Setup Fits Your Life?

SIOUX FALLS, S.D. — When you first sign up for Medicare, you face a fork in the road. One path keeps you on Original Medicare and lets you add a Medigap policy to fill in the gaps. The other path moves your coverage into a Medicare Advantage plan run by a private insurer. Both are legal, both are common, and both come with real trade-offs. The trick is understanding how they are built before you pick one.

How Original Medicare is built

Original Medicare is the federal program itself — Part A for hospital care and Part B for doctor and outpatient care. You can see any provider in the country who accepts Medicare, and you don't need referrals. But Original Medicare doesn't have a yearly out-of-pocket limit, and it doesn't include drug coverage on its own.

That's where two add-ons come in. A stand-alone Part D plan covers prescriptions. A Medigap (Medicare Supplement) policy helps pay the deductibles, coinsurance, and copays that Original Medicare leaves for you. You pay a monthly premium for Medigap, and in exchange your surprise bills get much smaller.

How Medicare Advantage is built

Medicare Advantage (Part C) is different. You're still in the Medicare program, but a private insurance company manages your benefits. These plans must cover everything Original Medicare covers, and most include Part D drug coverage and extras like dental or vision built in.

The trade-off is structure. Advantage plans usually work through networks — HMOs or PPOs — so you may need to use certain doctors and hospitals, and some services require prior approval. They also have a yearly out-of-pocket maximum, which Original Medicare alone does not.

Why the choice matters in Sioux Falls

Sioux Falls is in Minnehaha County, where residents have access to both paths. Medicare plan availability is set at the county level, so the specific Advantage plans and Part D options you can join depend on where you live, not just the city name.

If you travel often, split time between states, or want the freedom to see specialists without network limits, the Original Medicare + Medigap combination tends to fit that lifestyle. If you prefer predictable copays and like the idea of one card that bundles medical, drug, and extra benefits, Medicare Advantage may match how you use care.

The 2027 rules that apply to both paths

A few Part D figures are the same no matter which path you take:

• The Part D out-of-pocket cap is $2,100 in 2026.
• The Part D maximum deductible is $700 in 2027.
• The old coverage gap, or "donut hole," was eliminated in 2025. Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the calendar year in monthly amounts instead of paying big sums at the pharmacy counter.
• IRMAA surcharges — higher premiums based on income — begin above $109,000 for a single filer in 2026.

A common mistake to avoid

The biggest misstep isn't picking the "wrong" path — it's picking one without knowing you can be locked in later. When you first enroll in Medicare, you generally have a one-time guaranteed right to buy a Medigap policy without medical underwriting. If you start on Medicare Advantage and later try to switch to Original Medicare + Medigap, insurers in most states can ask health questions and may deny you or charge more.

That doesn't mean Advantage is a trap. It means the initial decision deserves real thought, and a call to South Dakota's SHIP counselor (the free State Health Insurance Assistance Program) is worth your time before you sign anything.

When you can make changes

• Annual Enrollment Period: Oct. 15 – Dec. 7 every year. You can switch between Original Medicare and Medicare Advantage, change Part D plans, or join a new plan.
• Medicare Advantage Open Enrollment: Jan. 1 – March 31. If you're already in an Advantage plan, you can switch to a different one or return to Original Medicare (and add a Part D plan).

Missing these windows usually means waiting a full year, so mark your calendar.